What Wins a Vote? Formatting, Length, and Lexical Diversity in the French Compar:IA LLM Arena
French Compar:IA votes show bold text and vocabulary variety shift LLM arena rankings.
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French Compar:IA votes show bold text and vocabulary variety shift LLM arena rankings.
Random Forest using stylometric features detected ChatGPT-assisted student writing with ROC-AUC 0.87.
Prompt-driven style-aware paraphrasing with LLMs cuts authorship attribution F1 by 60-70% while preserving content quality.

Arena.ai found Claude Fable 5.1 writes 30% longer answers with fewer em dashes, hedges, and validation phrases than Fable 5.

University of Massachusetts Dartmouth researchers present VulStyle, a stylometry-based vulnerability detector that also exposes benchmark reliability problems.
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